Water-heater



E. DREVET.

WATER HEATER.

APPLICATION FILED APR. 11, 1919.

Patented May 25, 1920.

/5 /n van/0r Elm/e Drere/ UNITED STATES EMILE DREVE OI? MON REAL, QUEBEC, CANADA,

WATER-HEATER.

Specification of Letters Patent.

Patented. May 25, 1920.

= Application filed April 11, 1919. Serial No. 289,471.

To all whom it may concern Be it known that I, EMILE Denver, manufacturer, residing at 584 St. Timothy street, in the city of Montreal, in the Province of Quebec, in the Dominion of Canada, have invented certain new and useful Improvements in Water-Heaters; and I do hereby declare that the following is a full, clear, and exact description of the same.

The present invention relates to improv ments in water heaters; and its object, briefly stated, is to provide an apparatus of the character indicated which is of simple and cheap construction, and which will consume a comparatively small quantity of gas and yet serve to instantaneously heat the water.

An embodiment of the invention is illustrated in the accompanying drawing, in which Figures 1 and 2 are, respectively, a front elevation and a vertical sectional view of the heater; and

Fig. 3 is a plan view of the base of the heater.

Referrin more particularly to said drawing, 1 indicates the cylindrical outer casing of the heater, and 2 the frusto-conical top portion of said casing, said portion being apertured at its upper end to receive a tubular member or flue 3. The latter has secured to it by means of the webs 5 an inverted conical baffle 4 provided at its apex with an outlet opening 6, the purpose of which will be subsequently explained.

Within the casing 1 there is arranged a cylindrical inner casing 8, which is suitably secured at its lower end to said casing 1, and is spaced therefrom to provide an intermediate annular chamber from which the heated water is discharged. through an outlet 7 located near the bottom of the chamber. The upper end of the inner casing 8 terminates in an open topped frusto-con1cal portion 9, adjacent which there is arranged an annular flange 10, the latter being preferably downwardly tapered and being so disposed as to provide an annular passage 90 between it and the frusto-conical portion 9, as shown in Fig. 2. A conical bafile 11. is secured immediately over the open top of the said portion 9 and serves to direct the heated gases issuing through said top against the flange 10.

The main or outer casing 1 is supported upon a cylindrical base 12 which is pro secured within the said base 12, and is supplied with the combustible mixture of air and. gas by a pipe 26 in which the mixing operation takes place, the gas being fed to this pipe 26 by a pipe 20 equipped with a suitable valve 17, which is operated by a handle 22 having connected to it an indicating hand 23 for cooperation with a dial 24. Water is supplied to the heater by a pipe 28, which extends upwardly alongside the casing 1 and has connected to its upper end a horizontal pipe 29. The latter projects through said casing directly above the conical baflie 11, and is formed intermediate its length with an outlet hole 30. Just above this hole 30 there is provided a conical spraying member 81 which is suspended from a bracket 32 fixed to pipe 29. The water supply pipe 28 is provided with a controlling valve (not shown) of some suitable type, which is opened to admit the water into said pipe, this 'valve being preferably connected with the gas valve in such a way that the operation of the handle 22 will actuate both valves simultaneously.

Assuming that both valves have been opened as above described, the water will pass through pipes 28 and 29 and will be discharged under pressure through the opening 30 in the last-named pipe, striking immediately against the cone 31 and being deflected thereby in the form of spray. The spray, in turn, strikes against the inclined wall of the top 2, and some of it also strikes against the conical deflector 4. The water then drips down the sides of the casing 1 passes over the oblique flange 10 and through the passage 90 and drips down along the inclined sides of the top 9 of the inner casing S, and finally passes into the chamber formed between the walls of the two casings, as will be understood, any water which may have splashed into the deflector 4 from the inclined wall 2 escaping from the deflector through the outlet 6. The gas passes into pipe 26, where it mixes with the air, and then flows into the burner 27 When the gasis ignited, the heated air and products of combustion rise to the top of the casing 8 and striking against the de flectorll escape through the space between the latter and the top 9 of said casing, and then rise into the upper portion of the casing l, where they pass between the webs 5 and enter. the deflector 4t, whence they escape by way of the outlet flue 3 which may be connected to the chimney (not shown).

l/Vhen the heated air and products of combustion reach the upper portion of the casing 1, they are forced to pass through the spray and transmit to it most of their heat. Thus the water will be immediately warmed up and thereafter thoroughly heated by flowing downwardly in a very thin sheet over the outer surface of the casing 8.

What I claim as my invention is:

1. In a water heater, the combination of a casing; a 'burner in the lower portion thereof; a water supply pipe in the upper portion of the casing having means for discharging the water in spray form; a hollow, inverted-conical deflector located within the casing immediately above said water discharging means and against which the water spray is directed; means within said casing fordirecting the heated products of combustion toward the spray; and a tubular outletuneinber mounted in the top of the casing immediately above said deflector and extending downward thereinto, whereby said products of combustion, after passing through the spray, are caused to enter and pass through the deflector and to escape therefrom through said tubular outlet member.

2. In a water heater, the -ombination of a casing; a burner in the lower portion thereof; a water pipe passing horizontally through the upper portion of the casing and having a central outlet; a hollow, inverted-conical deflector suspended from the top of the casing innnediately above said outlet; a device interposed between the lower-end of said deflector and said outlet for c0nvert1ng the water discharged the said receptacle, a water supply pipe through the outlet into spray and for directing the spray toward said deflector; baflies within the casing for directing the heated products of combustion toward the spray; and a tubular outlet member mount- F ed in the top of the casing imnwdiately above said deflector and extending downward thereinto, whereby said products of combustion, after passing through the spray, are caused to enter and pass through deflector and to escape therefrom through said tubular outlet member.

33A water heater comprising an outer casing having a water outlet opening adjacent its lower end, an inwardlyextending vertical tubular member secured in the upper end of the casing, a conical. receptacle located below and secured to said tubular member, an open-ended inner casing disposed within and in para lel relation to said outer casing and spaced from the same whereby a vertical passage is formed therebetween a baflie plate provided above said inner casing, an inwardly-pioiecting oblique flange secured within said outer casing below said baflle plate, a burner provided adjarcut the lower end of said inner casing and so arranged that the heated gases pass through the upper end of said inner easing into the upper portion of the outer casing and pass through the conical IGOQ/DUUJl, and through the tubular member vonnnunieating with projecting through the upper portion of said outer casing having an outlet opening in termediate thereof, and a conical member suitably secured above said outlet opening to deflect the water passing through said outlet opening and convert into spray; substantially as described.

Signed at Montreal, Quebec, 1st day of April, 1919.

EMILE DREVET.

Canada, this Witness A. P. DEAL. 

